This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 11 | 6 |
| 12 | 0 |
| 13 | 2 |
| 14 | 302 |
| 15 | 8 |
| 16 | 151 |
| 17 | 19072 |
| 18 | 9862 |
| 19 | 18202 |
| 20 | 1603948 |
| 21 | 1067638 |
| 22 | 1310791 |
| 23 | 107096187 |
| 24 | 55488142 |
| 25 | 66608924 |
| 26 | 6149236417 |
| 27 | 3374967940 |
| 28 | 4259963914 |
| 29 | 402706752421 |
| 30 | 239187240144 |
| 31 | 292999006211 |
| 32 | 26470682075988 |
| 33 | 15360134570696 |
| 34 | 18595568012716 |
| 35 | 1685811256230132 |
| 36 | 964730606632516 |
| 37 | 1173328484648288 |